Climate Change and our Land of Fire, Flood and Drought.

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Originally Posted by AK83

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Pre 1970 we've(Aus) had more drought periods than post 1970 records.
if we call 1960 the midway point, there were more lower rainfall periods in the first half than the second half.
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Perhaps it should be pointed out that rainfall is only half of the drought question. The other is transpiration and evaporation, which is greatly increased by higher temperatures and higher wind velocities. A good example of this is that in this area we got what looked like worthwhile rain in march this year - but it was followed by several days of temperatures about ten degrees above average, with strong winds and single digit humidity. After this soil moisture was the same as it was before the rain, and storage levels were lower than before the rain, simply by evaporation.

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Originally Posted by JDNSW

Perhaps it should be pointed out that rainfall is only half of the drought question. The other is transpiration and evaporation, which is greatly increased by higher temperatures and higher wind velocities. A good example of this is that in this area we got what looked like worthwhile rain in march this year - but it was followed by several days of temperatures about ten degrees above average, with strong winds and single digit humidity. After this soil moisture was the same as it was before the rain, and storage levels were lower than before the rain, simply by evaporation.

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Water management is something this country seems to get very, very wrong.

There are so many ways to reduce evaporation and we epically fail at managing the resource well.

I worked on a project here to reduce water loss (process and potable) and we use simple systems to reduce water loss - a substantial improvement.

With our population growth and lack of increase in storage facilities we are destined to run short for urban water supply as well.

It's not hard to figure out how global warming is worsening our current drought. I've already posted it once, without response, so I'll post it again.
Global warming is warming the Indian Ocean off Africa, and cooling the ocean off Australia, which results in less rain in Australia and floods in Africa. There it is, in a sentence.

Global heating supercharging Indian Ocean climate system

Global heating supercharging Indian Ocean climate system | Global development | The Guardian

Attachment 155862
By Giorgiogp2 - Own work, CC BY-SA 3.0


So we're told that this current global change is man made, fair enough lets assume that it is, and that nothing in history has such precedence.
How do they know this(exactly) .. this is why the 4.2Kyr event is so important in the data set .. doesn't appear in the ice cores, yet they know it happened .. archeologically speaking.

So what's to say that other 'events' have also been missed as well.
Scientifically speaking, there is more likelyhood that another event has been missed(if one has, then likely others will have been). They may have been less dramatic, they may have been shorter lived.
But the consensus is that the 4200 year ago event is not in the climactic records, yet it still happened.

On climactic current trends, the alarmist's message(of impending catastrophe, and urgency of action) is simply without any foundations.
In each and every previous climactic change(both cooler and warmer) humans survived! And had done so without the benefit of having the sciences to help them see it coming, or to adapt to the coming change.
We (supposedly) do, and instead of seeing that change is coming and prepare to adapt ourselves .. instead we think we have the power to adapt the climate to our preference! :confused:

So again the data shows that in a 100-200 year period, the climate had not only warmed and cooled by approx 2-3°C variance, humans still evolved, adapted and brought forth new technologies .. uninterrupted.
For sure these would have been catastrophic losses of life .. for those that didn't want to adapt, and accept that adaptation was going to be required.
But the 'ostriches' in the climate sciences community seem to think that adapting is something that the environment needs to do ... and that we have some almighty power to do this.

In a few hundred years, this will go down in history as humankind's most monumental blunder.

Climate change in itself is normal but what is concerning now is the rate of change in the climate - has never changed as fast in all history. The simple measure is the release of man made green house gases which correlates directly with the rate of change.

For sure since the creation of the earth we have had much higher levels and the planet was not liveable for our style of life - only started to become liveable as carbon was locked away through the processes that let to coal and oil and trees.

Look to Venus for the end result if an extreme continued unchecked.

We need to listen to the real scientists not the arm chair warriors.

The "Precautionary Principle" should apply until we can prove that current Climate Change is not man made.

garry

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Originally Posted by DiscoMick

It's not hard to figure out how global warming is worsening our current drought. I've already posted it once, without response, so I'll post it again.
Global warming is warming the Indian Ocean off Africa, and cooling the ocean off Australia, which results in less rain in Australia and floods in Africa. There it is, in a sentence.

Global heating supercharging Indian Ocean climate system

Global heating supercharging Indian Ocean climate system | Global development | The Guardian

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Thanks Mick,

Did you read the carefully worded response from the “Scientist”.... suggestions that it may be becoming more frequent.

Not - data shows it is becoming more frequent, or that the effects can be proven to be more frequent.


I’ll also remind people reading my posts - I don’t deny Climate Change - it is an inevitable part of the planets cycle. Warning and cooling events are a given.
It’s been a damn site warmer and bloody freezing in the life of this rock. CO2 (the apparent demon gas) has been in far greater concentrations in history also.
The biggest single contributor to CC is Sol, and Earths orbital alignment.

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Originally Posted by 101RRS

Climate change in itself is normal but what is concerning now is the rate of change in the climate - has never changed as fast in all history. The simple measure is the release of man made green house gases which correlates directly with the rate of change.

For sure since the creation of the earth we have had much higher levels and the planet was not liveable for our style of life - only started to become liveable as carbon was locked away through the processes that let to coal and oil and trees.

Look to Venus for the end result if an extreme continued unchecked.

We need to listen to the real scientists not the arm chair warriors.

The "Precautionary Principle" should apply until we can prove that current Climate Change is not man made.

garry

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Problem with that - according to alarmist Scientific reports - it’s all too late.

If we keep adding people to the planet it will only increase outputs and consumption. So what’s the option there?

Take the simple maths:

If each human on average generates a 100 “Carbons”.
We aim to reduce each persons “Carbons” by 25%.

7,700,000,000 x 100 = 77,000,000,000 “Carbons”
If we decrease 25% that becomes 57,750,000,000 “Carbons” units
By 2050, working on population projections and the 75% Carbon contribution that will mean emissions from people would equal a “Carbons” output of 750,000,000,000 units.

Totally and utterly terminal....

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Originally Posted by 101RRS

Look to Venus for the end result if an extreme continued unchecked.

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look at mars, the atmosphere is 95% carbon dioxide and its not a warm planet.

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Originally Posted by Tombie

You mean when someone supporting your belief system comes out saying something that aligns with your stance.


Climate science has NOT been clear for years. They’ve redefined the model so many times over the years.

We’ve had Ice Age warning (we’re in one of those cycles atm), flood warning, global warming which was quickly dropped in favour of climate change.

And recently, they’ve added a significant data set to the climate model and its creating a few waves throughout the climate community.

And guess what! Like all ideologies / religions; it’s now so divided that regardless of the facts - those that believe either way will continue to do so.

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You’re entitled to your opinion just like everyone else, but it doesn’t mean I have to agree with you, no matter how hard you argue and attempt to align discussion with your own personal stance.

...What’s this playing the man business anyway?

Tombie, he's a non-subscriber, ergo has no access to non-GC forums. [biggrin]